bushcraft/survivalist preparation.
I'm almost done preparing for a nuclear fallout. I have most of the necessary equipments to survive basics like earthquakes, hurricanes, and home invasion. You can spend a ton of time for basics like choosing a tent, a gun, backpack, water purification systems.....and this of course includes all the other suggested hobbies--cooking, fishing, hunting, sewing, first-aid, cabinetry, leatherwork, etc. skills you'll need to survive in the absence of government or steady source of food--which need to be learned individually. If you don't have money right now, then spend time learning. Read up on disaster scenarios and practice how you would go about it when the shit hits the fan.